chore: reorganize docs apps (#7228)

* reorganize docs apps

* add README

* fix directory

* add condition for old docs

www/apps/api-reference/specs-v2/admin/components/schemas/ApplicationMethodsMethodPostReq.yaml

@@ -0,0 +1,83 @@
+type: object
+description: The promotion's application method.
+x-schemaName: ApplicationMethodsMethodPostReq
+properties:
+  description:
+    type: string
+    title: description
+    description: The application method's description.
+  value:
+    type: string
+    title: value
+    description: The application method's value.
+  max_quantity:
+    type: number
+    title: max_quantity
+    description: The application method's max quantity.
+  type: {}
+  target_type: {}
+  allocation: {}
+  target_rules:
+    type: array
+    description: The application method's target rules.
+    items:
+      type: object
+      description: The target rule's target rules.
+      x-schemaName: PromotionRule
+      required:
+        - operator
+        - attribute
+        - values
+      properties:
+        operator: {}
+        description:
+          type: string
+          title: description
+          description: The target rule's description.
+        attribute:
+          type: string
+          title: attribute
+          description: The target rule's attribute.
+        values:
+          type: array
+          description: The target rule's values.
+          items:
+            type: string
+            title: values
+            description: The value's values.
+  buy_rules:
+    type: array
+    description: The application method's buy rules.
+    items:
+      type: object
+      description: The buy rule's buy rules.
+      x-schemaName: PromotionRule
+      required:
+        - operator
+        - attribute
+        - values
+      properties:
+        operator: {}
+        description:
+          type: string
+          title: description
+          description: The buy rule's description.
+        attribute:
+          type: string
+          title: attribute
+          description: The buy rule's attribute.
+        values:
+          type: array
+          description: The buy rule's values.
+          items:
+            type: string
+            title: values
+            description: The value's values.
+  apply_to_quantity:
+    type: number
+    title: apply_to_quantity
+    description: The application method's apply to quantity.
+  buy_rules_min_quantity:
+    type: number
+    title: buy_rules_min_quantity
+    description: The application method's buy rules min quantity.